Sewing-machine-attachment holder



No. 770,707 PATENTED SEPT. 20, 1904,. L. P. ZIMMER.

SEWING MACHINE ATTACHMENT HOLDER.

APPLICATION FILED SEPT. 3, 1903.

N0 MODEL.

WITNESSES:

6?. X 2% fil/ ATTORNEY UNTTED STATES Patented September 20, 1904.

PATENT OFFICE.

LOUIS P. ZIMMER, OF CANTON, OHIO, ASSIGNOR OF TVVO-THIRDS TO LUTHER M.BARRIOK AND CHARLES H. BARRICK, OF CANTON, OHIO.

SEWING-MACHINE-ATTACHMENT HOLDER.

SPECIFICATION forming part of Letters Patent No. 770,707, datedSeptember 20, 1904.

Application filed September 3, 1903. Serial No. 171,816. (No model.)

To all whom it may concern.-

Be it known that I, LoUIs P. ZIMMER, a citizen of the United States,residing at Canton, in the county of Stark and State of Ohio, haveinvented certain new and useful Improvements inSewing-Machine-Attachment Holders; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the annexed drawings, making a part of this specification,and to the figures of reference marked thereon, in which Figure 1 isaview showing the frame of a sewingmachine, illustrating my improvementproperly attached to the presser-foot bar. Fig. 2 is a transversesection of the presser-foot bar, also showing in section the differentparts pertaining to my improved attachment-holder. Fig. 3 is a viewshowing the bottom or lower end of an ordinary presserfoot bar. Fig. 4is a view of the thumb-nut. Fig. 5 is a detached top view of a hemmer.Fig. 6 is a detached View of the attaching screw or stud.

The present invention has relation to sewing-machine-attachment holders;and it consists in the novel construction hereinafter described, andparticularly pointed out in the claim.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

In the accompanying drawings, 1 represents the presser-foot bar, whichis attached to the head 2 of the sewing-machine proper in theordinarymanner, it of course being understood that different attachmentsof the presserfoot bar 1 are to be provided for different makes ofmachines, inasmuch as the presserfoot bar within itself forms noparticular part of the present invention except that a presserfoot baris necessary and becomes a necessary element in carrying out the objectsand purposes of the present invention.

The bottom or lower portion of the presserfoot bar 1 is provided withthe screw-threaded aperture 3, which screw-threaded aperture 3 is forthe purpose of receiving the screwthreaded portion of thethumb-nut-holding screw or stud 4. In adjusting the thumb-nutholdingscrew or stud 4 it is important that it be properly adjusted, so thatits attached end will not extend beyond the surface of the presser-footbar opposite to that from which the screw or stud 4 extends, and inorder to provide for this adjustment the convolutions of thescrew-threads stop at a point so that when all the convolutions arereceived in the screw-threaded aperture proper adjustment will be hadfor the screw or stud 4.

The screw or stud 4 is provided with the head 5, which head is providedwith the slot 6, which slot is for the purpose of receiving an ordinaryscrew-driver to rotate the screw or stud 4, so as to properly attach thesame to the presser-foot bar 1.

The screw or stud 4 is provided with the smooth or non-screw-threadedportion 7 and is so formed for the purpose hereinafter described.

The head 5 of the screw or stud 4 is provided with ascrew-threadedperiphery, which screwthreaded periphery is for the purpose of receivingthe internal screw-threads of the thumb-nut 8. The thumb-nut 8 isprovided with the internal flange 9, which internal flange is so formedthat it will form a stop as against the outward movement of the thumbnut8 and at the same time allow the thumbnut to move back and forth uponthe head 5 of the screw or stud 4. In the drawings I have illustratedthe flange 9 formed integral with the thumb-nut 8; but it will beunderstood that this is not absolutely necessary owing to the fact thatthat portion forming the flange 9 may be made separate and attached tothe thumb-nut 8. This is simply mechanical as to whether or not theflange portion is formed integral or separate, as the only objectdesigned to be accomplished is to limit the outward movement of thethumbnut 8, but at the same time allowing the thumb-nut to move back andforth upon the non-screW-threaded portion 7 of the screw or stud 4 asthe thumb-nut is rotated in either direction.

It will be understood that in use various kinds of sewing-machineattachments are to be connected to the presser-foot-for instance, thehemmer 10and when said hemmer is not in use an ordinary presser-foot maybe attached or a rufHer attachment or the many attachments in commonuse.

It is well understood that if in the event the convolutions of the screwthreads become jammed by reason of removing or attaching the variousattachments difliculty is experienced, and hence the screw or stud 4: isprovided with the non-screw-threaded portion 7, which non-screw-theadedportion is located ata point or place where the various attachments areto be attached and clamped, and hence no screwthreads are exposed andthere can be no injury no matter how careless the operator may be inremoving and connecting the various attachments.

It ,will of course be understood that the connecting-shank 11 of thehemmer 10 is to be so formed that it will fit the bottom or lowerportion of the presser-foot bar 1 and the various attachments for anygiven machine, such as a Singer, are to have connecting-shanksconstructed alike so far as pertains to the attachment to thepresser-bar.

As shown in the drawings, the thumb-nut 8 is open at its outer end andis so formed for the purpose of allowing the insertion of a screw-driverto properly connect the screw or stud 4:.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The combination of a presser-bar provided with a screw-threaded apertureat its lower portion, an attachment-shank adapted to fit thepresser-bar, a screw provided with a head, said head having ascrew-threaded periphery, the stem of said screw provided with ascrewthreaded end, and a non-screw-threaded portion located between thehead and screwthreaded end portion, a thumbnut located upon the head ofthe screw and provided with an internal flange adapted for engagementwith the inner face of the screw-head, and the attachment located uponthe non-screw-thretuded portion of the screw at place of contact betweenthe presser-bar and the thumb-nut, substantially as and for the purposespecified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

LOUIS P. ZIMMER.

